Core workflow tweaks

Attempt to fix reporting (still unlikely to work) and improve Compose androidTests speed.

Author: oscar-ad

.github/workflows/core.yml

@@ -93,10 +93,10 @@ jobs:
       - name: Run tests
         run: ./gradlew test --build-cache --no-daemon --stacktrace --gradle-user-home "$GRADLE_HOME"
       - name: Core Test Report
-        uses: mikepenz/[email protected]
+        if: ${{ always() }}
+        uses: mikepenz/[email protected]
         with:
           report_paths: '${{ github.workspace }}/constraintlayout/core/build/test-results/test/TEST-*.xml'
-          github_token: ${{ secrets.GITHUB_TOKEN }}
 
   compose-androidTest:
     name: Compose instrumentation tests
@@ -110,11 +110,22 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+      - name: Gradle Wrapper Validation
+        uses: gradle/wrapper-validation-action@v1
       - name: Set up JDK 1.11
         uses: actions/setup-java@v1
         with:
           java-version: 1.11
 
+      ## Caching
+      - name: Cache build artifacts
+        uses: actions/cache@v2
+        with:
+          path: ${{ env.GRADLE_HOME }}/caches
+          # Don't set restore-keys so cache is always only valid for the current build config.
+          # Also don't use ${{ runner.os }} in the key so we don't re-assemble for UI tests.
+          key: gradle-${{ hashFiles('**/gradle/wrapper/gradle-wrapper.properties') }}-${{ hashFiles('**/*.gradle*') }}-${{ hashFiles('**/buildSrc/**') }}-${{ github.sha }}
+
       - name: AVD cache
         uses: actions/cache@v2
         id: avd-cache
@@ -156,10 +167,9 @@ jobs:
 
       - name: Compose AndroidTest Report
         if: ${{ always() }}
-        uses: mikepenz/action-junit-report@v1.2.1
+        uses: mikepenz/action-junit-report@v2.9.0
         with:
           report_paths: '${{ github.workspace }}/constraintlayout/compose/build/outputs/androidTest-results/connected/TEST-*.xml'
-          github_token: ${{ secrets.GITHUB_TOKEN }}
 
 
   lint: